1671941 has 2 divisors, whose sum is σ = 1671942. Its totient is φ = 1671940.

The previous prime is 1671907. The next prime is 1671947. The reversal of 1671941 is 1491761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1635841 + 36100 = 1279^2 + 190^2 .

It is an emirp because it is prime and its reverse (1491761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1671941 - 2¹⁴ = 1655557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1671947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835970 + 835971.

It is an arithmetic number, because the mean of its divisors is an integer number (835971).

2^1671941 is an apocalyptic number.

It is an amenable number.

1671941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671941 is an equidigital number, since it uses as much as digits as its factorization.

1671941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 29.

The square root of 1671941 is about 1293.0355756900. The cubic root of 1671941 is about 118.6880467236.

The spelling of 1671941 in words is "one million, six hundred seventy-one thousand, nine hundred forty-one".